Courtney Love was probably cast in the flick as more-or-less a shock value to sell tickets. Shouldn't hurt Rudy, those are the liberals type of people. The sit around trying to condone immorality.
Actually the story of how Love was cast is pretty interesting. The movie was directed by Milos Forman who is buddies with former Czech Republic President, Václav Havel. Apparently Havel was a fan of Cobain/Nirvana and suggested Love to Forman.